Blocks 99% UV Rays: Beat the heat and protect your interior with our car windshield sun shade’s multi-layered reflective and insulating material that deflects sunlight and UV rays before they enter your vehicle Rearview Mirror Cut-Out: Designed for a seamless fit around oversized rearview mirrors, our car sun shade windshield minimizes gaps and ensures maximum coverage for greater UV defense Cools Interior by Up to 55°F: The car shades for front windows keep your car cool and comfortable, so you can forget about scorching seats or steering wheels. Plus, each windshield cover is a breeze to install Fade-Resistant & Made to Last: Made from 240T thick polyester and reinforced with robust ductile wire, our sun shade for car windshield retains its shape, is crack-resistant, and withstands countless folding Choose Your Fit: With 4 tailored sizes, our automotive windshield sunshades ensure a perfect fit on cars, SUVs, trucks, and vans. Refer to the size chart and begin stopping heat in its tracks